This book offers an in-depth understanding of IgG4-related digestive disease, a relatively new and rare condition, addressing a significant knowledge gap in the medical field. The volume is divided into five main sections. The introductory section covers epidemiology, pathophysiology, and biomarkers. The second section explores IgG4-related disease of the pancreas, specifically autoimmune pancreatitis (AIP) type 1. The third section is devoted to IgG4-related disease of the liver and bile ducts. The fourth section addresses the systemic treatment of IgG4-related digestive disease. The closing section discusses other considerations in IgG4-related digestive diseases. Each chapter provides detailed, evidence-based knowledge and practical guidance. Authored by the same experts who contributed to the European Guidelines on IgG4-related digestive disease, the primary aim of the book is to educate and inform medical professionals about IgG4-related digestive disease, enhance understanding, improve diagnostic accuracy, and guide effective treatment strategies. Ultimately, it aims to advance the field of gastroenterology and improve patient outcomes through better-informed medical practice. The book is designed for a broad spectrum of medical professionals, including those in general practice, gastroenterologists, surgeons, and medical students, residents, and consultants. Its comprehensive coverage makes it an invaluable resource for anyone involved in the diagnosis, treatment, and research of digestive diseases.

Miroslav Vujasinovic is an associate professor at Karolinska Institutet and President of the Scandinavian Baltic Pancreatic Club. He served as scientific secretary for the first European Guidelines on IgG4-related digestive diseases and was a member and national representative for the European Guidelines on Chronic Pancreatitis. He also contributed as a member of the scientific board for the European Guidelines on Pancreatic Exocrine Insufficiency. Most recently, he led the development of the international multidisciplinary consensus report on fatty pancreas. His research and leadership activities reflect his commitment to advancing knowledge in pancreatology and digestive diseases. He is affiliated with Karolinska Institutet and Karolinska University Hospital in Stockholm, Sweden.
J.-Matthias Löhr is a professor at Karolinska Institutet and a former General Secretary of the European Pancreatic Club. He also served as President of United European Gastroenterology. He led the development of the European Guidelines on Chronic Pancreatitis and the European Guidelines on Pancreatic Exocrine Insufficiency, as well as the first European Guidelines on IgG4-related digestive diseases. He also served as senior author of the recently published international multidisciplinary consensus report on fatty pancreas. His extensive experience in gastroenterology and pancreatic research has contributed significantly to the field. He is affiliated with Karolinska Institutet and Karolinska University Hospital in Stockholm, Sweden.